Ferrocene-modified covalent organic framework for efficient oxygen evolution reaction and CO 2 electroreduction.

A ferrocene-modified COF, namely Ni-Tph-COF-Fc, was synthesized and applied in OER. Compared with Ni-Tph-COF-OH, Ni-Tph-COF-Fc shows improved performance with a current density of 99.6 mA cm -2 , an overpotential of 450 mV, and a Tafel slope of 73.1 mV dec -1 , which may be attributed to a synergy between introduced ferrocene and metalloporphyrin in the COFs. Moreover, the enhanced OER performance leads to an improved CO 2 RR performance with an FE CO of 93.1%. This work represents an effective strategy to enhance the anodic OER performance and realize efficient CO 2 RR.